topic Re: How to Disable autoactivation of VG? in Operating System - HP-UX

How to Disable autoactivation of VG?

Jose Vidal — Thu, 27 Jul 2000 17:00:39 GMT

How do I disable automatic activation of a VG after system reboot?

Re: How to Disable autoactivation of VG?

Jose Vidal — Thu, 27 Jul 2000 17:07:21 GMT

Is there a way to control the activation of individual VG's?

Re: How to Disable autoactivation of VG?

Jason Luginbuhl — Thu, 27 Jul 2000 17:08:28 GMT

This happens at startup with the rc sript /sbin/lvmrc. However, this reads the configuration file /etc/lvmrc. There is a flag in this file called AUTO_VG_ACTIVATE that defaults to a 1. Setting this to a zero will disable the automatic activation of any volume group but the root one.

Re: How to Disable autoactivation of VG?

Rick Garland — Thu, 27 Jul 2000 18:24:11 GMT

This will do all VGs that are on the system (except the root VG). If you are looking for just a VG to not be activated, can make a rc script to deactivate the VG as the system comes up or manually issue the command after the system is up.

Re: How to Disable autoactivation of VG?

John Palmer — Fri, 28 Jul 2000 07:32:40 GMT

The script /etc/lvmrc has a function called custom_vg_activation which is intended for activating the volume groups that you require.

Set the variable AUTO_VG_ACTIVATE=0 to disable the activation of all volumes in /etc/lvmrc and add the appropriate vgchange and parallel_vg_sync calls as per the comments in the script.

e.g. to activate vg00 and vg01 only, add the following after the comments in function custom_vg_activation:-

/sbin/vgchange -a y -s /dev/vg00
/sbin/vgchange -a y -s /dev/vg01
parallel_vg_sync "/dev/vg00 /dev/vg01"

Regards,

John

Re: How to Disable autoactivation of VG?

Insu Kim — Thu, 24 Aug 2000 07:21:43 GMT

The simple way of disabing autoactivation is to modify a file, lvmrc, in the /etc as follows,

AUTO_VG_ACTIVATE=0

Re: How to Disable autoactivation of VG?

Vince Inman — Thu, 24 Aug 2000 12:21:14 GMT

The /etc/lvmrc file by default activates all
VG's it can find. There is a AUTO_VG_ACTIVATE variable that enables this function. It should be set to 0 (zero) to disable this, however you will also have to put the VG's that you do want auto activated (such as vg00) into the function custom_vg_activation() using the vgchange command for each VG that is to be activated.